package edu.taru.office.config;

import edu.taru.office.shiro.realm.OfficeShiroRealm;
import org.apache.shiro.spring.LifecycleBeanPostProcessor;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Shiro配置
 */
@Configuration
public class ShiroConfig {

    @Bean
    public ShiroFilterFactoryBean shirFilter(org.apache.shiro.mgt.SecurityManager securityManager) {
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        //拦截器.
        Map<String,String> filterChainDefinitionMap = new LinkedHashMap<String,String>();
        // 配置不会被拦截的链接 顺序判断
        //登录页面不拦截
        filterChainDefinitionMap.put("/view/**", "anon");

        //登录请求不拦截
        filterChainDefinitionMap.put("/authc/**", "anon");
        filterChainDefinitionMap.put("/common/**", "anon");
        filterChainDefinitionMap.put("/static/**", "anon");
        //配置退出 过滤器,其中的具体的退出代码Shiro已经替我们实现了
        //<!-- 过滤链定义，从上向下顺序执行，一般将/**放在最为下边 -->:这是一个坑呢，一不小心代码就不好使了;
        //<!-- authc:所有url都必须认证通过才可以访问; anon:所有url都都可以匿名访问-->
        filterChainDefinitionMap.put("/**", "authc");
        // 如果不设置默认会自动寻找Web工程根目录下的"/login.jsp"页面
        shiroFilterFactoryBean.setLoginUrl("/view/login");
        // 登录成功后要跳转的链接
        shiroFilterFactoryBean.setSuccessUrl("/index");

        //未授权界面;
        shiroFilterFactoryBean.setUnauthorizedUrl("/403");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    @Bean
    public OfficeShiroRealm officeShiroRealm(){
        OfficeShiroRealm myShiroRealm = new OfficeShiroRealm();
        return myShiroRealm;
    }


    @Bean
    public org.apache.shiro.mgt.SecurityManager securityManager(){
        DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
        securityManager.setRealm(officeShiroRealm());
        return securityManager;
    }


    /**
     * 目前还不了解其核心作用
     * @return
     */
    @Bean
    public LifecycleBeanPostProcessor lifecycleBeanPostProcessor(){
        LifecycleBeanPostProcessor  lifecycleBeanPostProcessor =new LifecycleBeanPostProcessor();
        return  lifecycleBeanPostProcessor;
    }

}
